Out, out, damn'd spot!

You are called to the emergency room to calm some panicked parents who brought their healthy 2-year old boy in for evaluation of black spots on his legs which were noted when he awoke this morning (fig. 1). It seems that his younger brother developed similar black spots later this morning. The boys are healthy and the lesions are not symptomatic. What’s the diagnosis?

“The worst atopic dermatitis of my life”: a True Dermatologic Emergency

You are called to the emergency room to see an ill looking 13-year-old boy with a severe flare of his atopic dermatitis associated with fever, malaise, and chills for the last week. What’s the diagnosis?